Cleaning device, cartridge and image forming apparatus

A cleaning device for removing a developer remaining on an image bearing member from the image bearing member, said cleaning device comprising:

• cleaning means, including an elastic blade elastically contacted to the image bearing member and a supporting member for supporting said elastic blade, for removing the developer remaining on the image bearing member from the image bearing member;
• an image bearing member bearing member including a supporting portion for rotatably supporting the image bearing member;
• and
• a removed developer accommodating container formed of a material having a thermal expansion coefficient different from that of a material for said supporting member, said removed developer accommodating container including an accommodating portion for accommodating the developer removed by said cleaning means,
• wherein said image bearing member bearing member is fixed at longitudinal ends of said supporting member,
• wherein said removed developer accommodating container is fixed to said image bearing member bearing member fixed at one longitudinal end of said supporting member, and
• wherein said image bearing member bearing member fixed at the other longitudinal end of said supporting member and said removed developer accommodating container are opposed at their side surfaces to form a gap therebetween with respect to a longitudinal direction of said supporting member.